Mechanical hoe



June 5,1928. 5 1,672,753 I,

F. DECOTEAU MECHANICAL HOE Filed June 1, 1927 4 Sheets-Sheet l June 5,1928.

F. DECOTEAU MECHANICAL HOE Filed June 1, 1927 v 4 Sheets-Sheet 2 ATTORNEY June 5, 192's. 1,672,753

' F. DECOTEAU MECHANICAL HOE Filed June 1, 1927 4 Sheets-Sheet 3ATTORNEY WITNESS: WW

WITNEsfiA WM June 5, 1928.

F. DECOTEAU MECHANI CAL HOE Filed June 1 1927 4 Sheets-Sheet '4 INVENTORATTO RN EY front end of the frame by thefifth wheel ar' Patented June 5,1928.

' UNITED STATES FRANK DECOTEAU, OF DUTCH TOWN, LOUISIANA.

MECHANICAL non a lication filed June 1, 1927. Serial No. 195,133.

This invention relates to an agricultural implement, the general objectof the invention being to provide a wheel supported frame having aplurality of hoes thereon,

with means for actuating thehoes as the machine is pulled along so thatthe hoes will be brought in, contactwith the ground to, dig up theround.

Anot

the actuating means when they strike an ob: struction to prevent damageto the parts.

parts, to be hereinafter fully described, illustrated in theaccompanying drawings and specifically pointed out in the" appendedclaims.

In describing my invention in detail, reference will be, had to theaccompanying drawings wherein like characters denote like orcorresponding parts throughout the several views, and in which 2 1Figure 1 is an elevation'o'f the device. Figurefl isa plan view thereof.Figure 3 is a sectionon line 33 of Figure 1. Y

Figure 4 is a ure 3.

Figure 5 isa section on line 5 5 of Figurel. I

Figure. 6 isa rear view of the device.

of the central part ure 1. y

Figure 8 is a side view of the supportlng means for the front end of thedriven shaft.

Figure 9 is a section on line 9-9 of Figy 1'0dJ31 whlch 1s pivotallyconnected with the In these views, 1 indicates the main frame of thedevice which includes the rear beam 2 and which is supported at itsfront bythe frontbeam 3 which is connected with the ran ement 4.

T e rear beam2 has ad'ustably connected therewith the crank sha ts 5which carry the rear wheels 6, while the front beam 3' has adjustablyconnected therewith thecrank shafts 7 which carry the front Wheels 8. Byadjustably connecting the shafts with the beams, the wheels can be movedtoward or away from the frame. A tongue 9 is attached to the beam 3 andone of the rear sectionon line 4-4 of Figtween the inner collar and thefront end of Figure 7 is a section online 7--7 ofFigwheels 6 hasfastened thereto a sprocket 10, and this wheel may be provided with thelugs 11, for preventing it from slipping A'shaft 12 is transverselyarranged at the rear of the frame, and the outer end of this shaftcarries a sprocket 13, a chain 14 passing over this s rocket and thesprocket 10 g .'so that the sha t 12 will be driven from the er objectof the invention is to pro vide means for ad'usting the hoes in relationto the ground an for releasing them from rear wheel 6. A longitudinallydriven shaft 15Ihas its front part rotatably mounted in a bearing member16 which is movabl Y supported in the guides 17 which depen from thefront part of the frame, and the rear This invention also .consists incertain other features of construction and in thecombination andarrangementof the several part of the shaft asses through a boxing 18which is ivota 1y arranged in the supports 19 whic depend from the rearpart of I face of the thrust block. A sleeve 25 is rotatably connectedwith the front end of the shaft 15 by means of the collars 26, and acoil spring 27 is mounted on the shaft be the member 16. This sprintends to move the'shaft 15. forwardly an thus hold the gear 20 inmeshwith the gear 21, it being understood that the shaft is slidably mountedin the member 16 and the boxing 18.

hand lever 28' is mounted on the frame adjacent the drivers seat, thisseat not being shown, and: said lever is connected by a series of links29 and bell cranks 30 with a This rearward movement of the shaft 15 isimparted to its through means of a hand lever 32 pivotally arranged ontheframe adjacent the drivers seat and being connected by a link 33 witha lever 34 which has its lower forked ,end pivotedin the member 16, theprongs of the fork being provided with extensions 35 for engaging acollar'36 fastenedto the shaft 15 so that when the hand lever ismovedforwardly, the extenear21 fastened to the inner end of sions will pressagainst the collar by the tilting'rnovement of the lever 3 2 and thusthe shaft is moved rearwardly. The

7 spring 27 moves the shaft-forwardly again I shaft,

' the blade the desired distance jas ine cen-I 1 to place the gears inmesh when the hand lever is lowered. 4

A third hand lever 37 is, pivoted to the frame and has anarm 38 on" itslower'end which is connected by a link 39 with the sleeve 25, sothatwhenthe'hand lever 37" is moved rearwardly,ltheflink"39 will lift'thf sleeveand theiront" end'of the shaft15, and

in this movement the member "16 Will slide in the guides 17 while theboxing lSp'ivots' in 'its suppo'rts 19. j 4

it diskq tO is 'rotatab1y, niounted on the means of a bolt 43"whichpasses throng the slot intothe arm,'the arm being'p'rovidedl with theflanges 44 'atits sidesjfbr forming guideways for the member A head 45is f pivotally connected tothe euteifyeae of each member ztl2by neaiisof afb'olt' etb'and the" innerend of theshank ofeach headis pro-[ vided'with" an arcp throne h which passes a holt tdw'hich' enters" t e;

member 42 so that the lieadcan headjnsted ont'he bolt through means. ofthe slot and bolt 48'. The face of thehead is toothed to engage atoothed base 49 of a curved tool carrying member 50 to' which" i s'bolted a curved blade 51, the base andheadi being pivotalIyconnec-tedtogether,fa's shown at 52.

her 42 can be adjusted on'the disk to fplace ter of thedisk.

A clutch disk 54 is fastenedtbthe shaft" 15", and has pivotedthereto' apair of levers l 55', each-leverhav'ing a ronnded head'adapfl ed toengage the space formed by" a pair of lugs 56- on the hub of the disk40. These levers are held against movemntby the latch members 57 pivotedto the clutch disk: 54 and yieldingly v held against the levers by; thesprings 58,'each of'wh'ich has one en'djcon-nected with the latchandits" other end'connected tof a rod 59 wl1ich passes through a stud 60 onvthe disk 54 and hav- Ling its threaded end engaged by ajnut 61 so thatthe'tension ofthe spring can be ad justetL,

Thus the clutch disk, having its levers engage thelugs 56 on the bladecarrying disk 4Q, will cause the said disk 40 to rotate with the shaft15, but if'a blade should'strike an obstruction, the blade carryin'vdisk, will come to rest while the clutch isk 54 con" said disk beinformed withthe'ra-j diating' arms 41' and a slotted member 42 isadjustahly connected with each rm's tinues to move so that the Iever55will rock on its pivot, tilting the latch 57 against the action of thespring 58 until the head of the lever passes from between the lugs 56and thus the shaft and clutch disk can rotate without the blades andtheir disks 40 rotating. This will prevent damage to the parts if thehoes or blades strike an object or obstruction.

From the foregoing it will be seen that I have providedme'ansfor di gingup the soil"- by the hoes oi-"blades as t e devicetravel'sf s over theground, and when it is'desired to stop the hoes from revolving, the handlever 28 is"actiiated to liftthe then the hand lever 32 is" actuated tomove the shaft 15 rearwardly, so thattheg'ealf 20* willinoved outofinesliwiththe gearfll andthusthe shaftlfi vvillicorn'e to rest. The

sale 15 C511 be a jus ed th above th ground actuatin lever and the hoesor bladespan' e adjustedxto lacehtheni in the ost" desirable or't (2above described.

It is thought th foregoin desm ipg fe 's tion that the adv nt-a esandnov I v of my inventii'in will e readilyapparnti I desire it to beunderstood that I in make changes in construction and in t e combinationand arrangement" ofthe sveral parts, provided that suchchan, s fallWihmhe v h ppellants; msi atl claim v a v I 1. Anagricu'l my ample ent'coinpfising a wheeled. frame, a loiigitii inellyarran' Shaft thefin,"iIi pivoted tothe" rea fif the f me enc l through shaft passes, adepending" guldeway at t h front ofthe frame a member slidingther in andthrough whlch the" shaft passes, (a sleeve rotatably connected with; thefront end'of the shaft, a spring arranged O'I'ltthe shaft between thesleeve and ,thehslidl' member, a thrust block supported for vert calmovement at the rear of the frame and o i pe t de worktbyhedone,throughfthe means throughwhich the shaft "assess earpo'n thef shaftbearing 'against t, e thrust for raising the same, a hand leverconnected w ththesleeve fo'rraism front endof the shaft, ,a third handver, a lever go nected: therewith and 'ivoted inthetguide;

ways: at thefrontoft e fram and h ving a partfor engaging a partofthsHafttO move, theshaft rearwardly tioniof the springya shaft driven "oneof the ground wheeIs,l a gear Lthereo'n', meshing with the gear onjtheshaft 3 and a blade carrying member carried byfthe first shaft,

a wheeled frame, a longitudinally arrange shafttherein, a boxingpivotedto theflrear partof the fr'ame and through which the p w Ioiikia handlever connected with the thrust biock An agricultural limplerfintcontprisin d shaft passes, a depending guideway at the front of theframe, a member sliding" therein and through which the shaft passes, asleeve rotatably connected with the front end of the shaft, a springarranged on the member, a thrust block supported for vertical movementat the rear of the frame and through which the shaft passes, a gear onthe shaft bearing against the thrust block, a hand lever connected withthe thrust block for raising the same, a hand lever connected with thesleeve for raising the front end of v the shaft, a third hand lever, alever con- 15 nected therewith and pivoted in the guideways at the frontof the frame and having a part for engaging a part of the shaft to movethe shaft rearwardl against the action of the spring, a shaft riven fromone of the ground wheels, a ear thereon meshing shaft between the sleeveand the sliding.

with the gear on the rst mentioned shaft, a blade carrying membercarried by the first shaft and clutch means for connecting the bladecarrying member with the shaft, with means for freeing the bladecarrying member from the clutch means if a blade strikes an obstruction.

In testimony whereof I afiix my signature.

FRANK DECOTEAU.

